Kata

I need you to implement a function called float2bin that converts a float number to the corresponding 32-bit binary value. This involves analysing each part of the input number and appointing each bit of the output accordingly. See visual explanation from wiki below:

Rules:

• The conversion should match the IEEE754 Single precision 32-bit technical standard.
• The implementation should be able to handle both Strings ("123", "1.23") and Numbers (123, 1.23) as input.
• It should convert both positive and negative numbers.
• The output should always be a 32 characters long string, so padding of 0's is necessary if input is not negative.
• The point of this kata is to teach how floats are build on a binary level, so typed arrays are disabled.

Expectations and limitations:

• The input is valid numbers or strings of numbers.
• No weird edge cases are tested.
• Since there always is some rounding inaccuracy when working with floats, the last 5 characters in the output will not be checked. This is done using something similar to the approx function in the test fixture.

Here are some links to help you:

• https://en.wikipedia.org/wiki/Single-precision_floating-point_format
• http://www.binaryconvert.com/result_float.html